package com.sky.controller.user;


import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController("userDishController")
@RequestMapping("/user/dish")
@Api(tags = "C端-菜品浏览接口")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 根据分类Id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    public Result<List<DishVO>> list(Long categoryId){
        log.info("菜品分类Id:{}",categoryId);

        //构造redis中的key，规则dish_ + 分类Id
        String key = "dish_" + categoryId;

        //查询redis中是否存在菜品数据

        List<DishVO> list = (List<DishVO>) redisTemplate.opsForValue().get(key);

        //查询菜品如果存在
        if(list != null && list.size() > 0){
            return Result.success(list);
        }


        //查询菜品如果不存在
        Dish dish = new Dish();

        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);

        list = dishService.listWithFlavor(dish);

        redisTemplate.opsForValue().set(key,list);

        return Result.success(list);
    }

}

